This is the 5006th most frequent Japanese word.
繁殖
Reproduction; breeding; propagation.
In this sentence, 繁殖 refers to the process of reproduction or breeding in animals, emphasizing variability based on seasonal factors.
動物の繁殖が季節によって異なる種も多いです。
The reproduction of animals varies by season for many species.
Here, 繁殖 is used to describe the propagation or reproduction of plants, highlighting action taken to encourage growth.
植物の繁殖を促進するために、土壌を改善しました。
To promote the propagation of plants, we improved the soil.
In this case, 繁殖 is used to indicate the reproduction or breeding of fish in a specific area, providing context for environmental observation.